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Technical Data Sheet
PartsTable / MRO / 52-0521
52-0521 ✓ Verified by PartsTable
— · MRO · MRO_GENERAL
WHAT YOU NEED TO KNOW
PTFE tape on tapered threads (NPT/BSPT) JIC/AN flare connections seal metal-to-metal — no tape
NPT != BSPT — look identical, NOT interchangeable
PRODUCT OVERVIEW

The NOZZLE DIAPHRAGM,TURBINE is a the manufacturer industrial component. Key specifications include color: BLACK, width: 3.000 INCHES NOMINAL IN, length: 3.938 INCHES NOMINAL IN, thickness: 0.062 INCHES NOMINAL IN, terminal_type: PIN, component_name: FIXED WIRE WOUND RESISTOR. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-052-9876, indicating validated use in U.S.

government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
MRO→ MRO_GENERAL→ 52-0521
NSN: 4730-00-052-9876
FSC: 4730
CAGE: R1120 — SATAIR A/S (DNK)
SPECIFICATIONS
colorBLACK
width3.000 INCHES NOMINAL IN
length3.938 INCHES NOMINAL IN
thickness0.062 INCHES NOMINAL IN
terminal_typePIN
component_nameFIXED WIRE WOUND RESISTOR
mounting_methodTHROUGH HOLE
style_designatorBALL
terminal_quantity5
component_quantity1 AND 2
electrical_resistance130.0 OHMS AND 261.0 OHMS
component_relationshipNOT MATCHED
NSN4730-00-052-9876
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 52-0521 · OEM ⚠ VERIFY BEFORE ORDERING NPT ≠ BSPT — tapered threads look identical but are NOT interchangeable. Wrong thread = leak. JIC (37°) ≠ AN (37°) ≠ SAE 45° — flare angles must match exactly. Measure thread pitch with gauge — visual identification is unreliable ✓ BROKER TIP Always use thread sealant (PTFE tape or pipe compound) on tapered threads (NPT/BSPT). JIC/AN flare fittings seal metal-to-metal — never use tape on flare connections PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 22
D69517Interchangeable
interchangeable cross-reference
interchangeable
SN5750-10PC2T06-8T020-22T029Interchangeable
interchangeable cross-reference
interchangeable
44J47-3Interchangeable
interchangeable cross-reference
interchangeable
E21329-00Interchangeable
interchangeable cross-reference
interchangeable
C161Interchangeable
interchangeable cross-reference
interchangeable
MS16625-4037Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 52-0521?
52-0521 is a NOZZLE DIAPHRAGM,TURBINE. It is classified as a MRO (MRO_GENERAL).
What parts can replace 52-0521?
There are 22 known substitutes for 52-0521: D69517, SN5750-10PC2T06-8T020-22T029, 44J47-3 and 19 more. Substitute compatibility should be verified for your specific system.
Is 52-0521 still available?
52-0521 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026